/*
 * Copyright Eugen Stoian <stoian.e@gmail.com> 2010
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

#ifndef ASTNODE_H
#define ASTNODE_H
class ASTVisitor;
class ASTNode
{
public:
    virtual ASTNode* childAt(int i) = 0;
    virtual void addChild(ASTNode* aNode) = 0;
    virtual void removeChild(ASTNode* aNode) = 0;
    virtual void traverse(ASTVisitor& aVisitor) = 0;

    virtual void setSourcePosition(int sourceLine, int sourcePosition);
    virtual int getSourceLine();
    virtual int getSourceIndex();
    virtual void getSourcePosition(int& sourceLine, int& sourceIndex);

protected:
    ASTNode();
    int _sourceLine;
    int _sourceIndex;
};

#endif // ASTNODE_H
